#include <iostream>

using namespace std;

int main() {
    int i {1};
    // Zeiger auf i, direkt initialisiert
    int * pi {&i};

    i++;
    *pi = 0;
    (*pi)++;
 
    cout << "  i = " << i << endl;
    cout << "*pi = " << *pi << endl;

    return 0;
}

#include <iostream>

using namespace std;

int main() {
    int i {1};
    int *pi = 0; // Probiert mal NULL und nullptr aus.

    cout << "  i = " << i << endl;
    cout << " pi = " << showbase << hex << pi << endl;
    // stuerzt ab, da pi nullptr:
//    cout << "*pi = " << *pi << endl;
    
    pi = &i;
    if (pi == nullptr) {
        cout << "pi ist nullptr" << endl;
    } else {
        cout << "pi ist kein nullptr" << endl;
    }

    return 0;
}

#include <iostream>

using namespace std;

int main() {
    char const *cstring_a = "hallo";
    char cstring_b[] = "welt";
    char *cptr = (char*)cstring_a;

    //cstring_a[0] = 'H';
    cstring_b[0] = 'W';
    //*cptr = 'H';
    
    cout << cstring_a << endl;
    cout << cstring_b << endl; 

    return 0;
}

#include <iostream>

using namespace std;

struct Point {
    int x, y;
};

int main() {
    Point *pp = new Point(42.5,21.3); // <-- Probiert hier mal die geschweiften Klammern aus

    cout << "Point(" << pp->x << ", " << pp->y << ")" << endl;

    return 0;
}